Messages in this thread | | | From | Uday R <> | Date | Mon, 13 Jan 2020 17:35:56 +0530 | Subject | Re: Issue with Kexec memory allocation |
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Any help ?
Thanks, RK
On Mon, Jan 6, 2020 at 12:43 PM Uday R <opensource.linuz@gmail.com> wrote: > > Hello folks, > > I am using kexec to load into the new kernel from the existing kernel. > My vmlinuz image size is 6.6MB, initrd size is 18MB, and the root file > system size is 715MB. I use kexec command to load the new kernel into > memory. I observed that before calling kexec if the available memory > is less than 1.33GB then kexec lands into an out of memory issue > effectively kexec being killed by OOM-KILLER. I dont get into out of > memory issue if i have memory >=1.33GB. > > My question is why kexec tries to over allocate memory when the > available memory is less than 1.33GB and gets the available memory to > ZERO. > In case if the available memory is >= 1.33GB before calling kexec, > After kexec load, i see the memory consumed by kexec load is > approximately equal to size of "linux+initrd+root file system". > > Is there a bug in the 'Kexec' code and had been fixed ? > > Note: i am using the kernel from a vendor, Just wanted to know if > there is no such issue in mainstream code. > > Thanks in Advance, > Uday
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